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ActiveMQ example source code file (MySqlJDBCAdapter.java)

This example ActiveMQ source code file (MySqlJDBCAdapter.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - ActiveMQ tags/keywords

alter, bdb, engine, heap, innodb, innodb, isam, myisam, ndbcluster, ndbcluster, string, string, table, table, util

The ActiveMQ MySqlJDBCAdapter.java source code

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.activemq.store.jdbc.adapter;

import java.util.ArrayList;
import java.util.Arrays;

import org.apache.activemq.store.jdbc.Statements;

/**
 * 
 * @org.apache.xbean.XBean element="mysql-jdbc-adapter"
 * 
 */
public class MySqlJDBCAdapter extends DefaultJDBCAdapter {

    // The transactional types..
    public static final String INNODB = "INNODB";
    public static final String NDBCLUSTER = "NDBCLUSTER";
    public static final String BDB = "BDB";

    // The non transactional types..
    public static final String MYISAM = "MYISAM";
    public static final String ISAM = "ISAM";
    public static final String MERGE = "MERGE";
    public static final String HEAP = "HEAP";

    String engineType = INNODB;
    String typeStatement = "ENGINE";

    public void setStatements(Statements statements) {
        String type = engineType.toUpperCase();
        if( !type.equals(INNODB) &&  !type.equals(NDBCLUSTER) ) {
            // Don't use LOCK TABLE for the INNODB and NDBCLUSTER engine types...
            statements.setLockCreateStatement("LOCK TABLE " + statements.getFullLockTableName() + " WRITE");
        }

        statements.setBinaryDataType("LONGBLOB");
        
        
        String typeClause = typeStatement + "=" + type;
        if( type.equals(NDBCLUSTER) ) {
            // in the NDBCLUSTER case we will create as INNODB and then alter to NDBCLUSTER
            typeClause = typeStatement + "=" + INNODB;
        }
        
        // Update the create statements so they use the right type of engine 
        String[] s = statements.getCreateSchemaStatements();
        for (int i = 0; i < s.length; i++) {
            if( s[i].startsWith("CREATE TABLE")) {
                s[i] = s[i]+ " " + typeClause;
            }
        }
        
        if( type.equals(NDBCLUSTER) ) {
            // Add the alter statements.
            ArrayList<String> l = new ArrayList(Arrays.asList(s));
            l.add("ALTER TABLE "+statements.getFullMessageTableName()+" ENGINE="+NDBCLUSTER);
            l.add("ALTER TABLE "+statements.getFullAckTableName()+" ENGINE="+NDBCLUSTER);
            l.add("ALTER TABLE "+statements.getFullLockTableName()+" ENGINE="+NDBCLUSTER);
            l.add("FLUSH TABLES");
            s = l.toArray(new String[l.size()]);
            statements.setCreateSchemaStatements(s);
        }        
        
        super.setStatements(statements);
    }

    public String getEngineType() {
        return engineType;
    }

    public void setEngineType(String engineType) {
        this.engineType = engineType;
    }

    public String getTypeStatement() {
        return typeStatement;
    }

    public void setTypeStatement(String typeStatement) {
        this.typeStatement = typeStatement;
    }
}

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